print('Введите скобки')
d=input()
a='()[]{}<>'
s=' '
for el in d :
    if el in a :
        s+=el
while '()' in s or '[]' in s or '{}' in s or '<>' in s :
    s=s.replace('()', '')
    s=s.replace('[]', '')
    s=s.replace('{}', '')
    s=s.replace('<>', '')
if s ==' ':
    print('True')
else:
    print('False')